On 7 June, a lesbian pride march in Washington DC, the “DC Dyke March” banned marchers who had Stars of David on their rainbow flags. The organisers said that anti-Zionist Jews were welcome, and that they banned flags with Stars of David because they wanted to exclude all “nationalist” symbols.

Lots of people are nationalists of different shades. Why should they be banned from lesbian pride marches? And Palestinian flags weren’t banned. A similar ban was imposed at a pride march in Chicago in 2017. Root-and-branch anti-Israel politics inevitably spills over into antisemitism.

Keith Kahn Harris’s book sets out to be a short analysis on what drives a lot of conspiracy theories: denial.

People deny climate change, the effectiveness of vaccines, or the Holocaust. Kahn Harris explains succinctly where some of these conspiracies are driven from — helplessness in a world that leads the less informed to believing the conspiracy of someone with an alternative agenda. But the book is short in length and short on answers.

According to an Institute for Jewish Policy Research (IJPR) report on “Antisemitism in Contemporary Great Britain” levels of antisemitism in Britain are “amongst the lowest in the world”.

According to a Community Security Trust (CST) report on “Antisemitic Incidents – 2018”, the number of antisemitic incidents in 2018 was “the highest total that CST has ever recorded in a single year, an increase of 16% on 2017, which was itself a record annual total.”

While workers were angry and willing to fight, too often their anger was aimed at fellow workers of a different colour rather than at the employers and authorities responsible for their exploitation and poverty. Sometimes this occurred in the absence of socialist political leadership, but on occasion, labour movement misleadership played a poisonous role.

Minnie Lansbury was one of the rebel Labour councillors of Poplar (East London) who in 1921 forced the Tory¬Liberal coalition government to start central government payments to equalise resources between councils in poor and in well¬off areas.

Janine Booth’s biography of Lansbury is rich in detail about her life; working¬class conditions at the time; and much more. It is a solid achievement given the scarcity of material available on Lansbury to work on.

I used to think that conspiracy theorists were just silly. I must have made countless jokes about people who think the moon landings were faked, that Prince Philip ordered Diana’s death or that, despite NASA’s protestations, the Earth is in fact flat. But it’s become clear for some time now that conspiracy theories have reached a whole new level of influence.